Valve for acetylene-generators.



G. J. OLEPTON. VALVE FOR AGETYLENE GENERATORS.

APPLICATION EILED DEG. so, 1912. RENEWED JAN. 9, 1914.

1,,1 10 Patented Mar.30,1915.

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ion.

CLAUD J. GLEFTON, OF OWATONNA, MINNESOTA, ASSIGNOR TO THE CLEF'ION COMPANY,

.-OF OWATONNA, MINNESOTA, A CORPORATION OF MINNESOTA.

VALVE FOR ACET'YLENE-GENERATORS.

Application filed December 30, 1912, Serial No. 739,276. Renewed January 9, 1914:.

To all whom it may concern:

Be it known that I, CLAUD J. CLnF'roN, a citizen of the United States, resident of Owatonna, in the county of Steele, State of Minnesota, have invented certain new anduseful Improvements in Valves for Acetylene-Generators, of whichthe following is a specification.

My invention relates to valves for regulating orcontrolling the discharge of carbld from the hopper of the generator into the Water tank.-

The object of my invention is to provide means which will automatically limit the feed of the carbid and prevent an excess discharge into the water and an over-supply of gas in case the controlling mechanism for any reason should fail to operate and check the feed.

My'invention consists generally in varlous constructions and combinations, all as hereinafter described and particularly pointed out in the claims.-

In the accompanying drawings forming part of this specification, Figure 1 isa vertical sectional view of the upper port1on of an acetylene generator embodying my 1nvention, Fig. 2 is a detail sectional view of the valve, Fig. 3 is a transverse sectlonal view of the valve mechanism, taken on line w-w of Fig. 2, Fig. 4 is a detail View showing the relative position of the valve blades upon the stem. Fig. 5 is a detail sectional view, illustrating the connection between the oscillating valve stem and the pivoted operating lever.

In the drawing, 2 represents the Wall of the outer or water tank of the generator, and 3 is the gas bell having a cover 4 provided' with a water seal at 5.

6 is a cylinder, open at the top and bottom and carried by the gas bell and inclosing the carbid hopper 7 which is mounted upon legs 8 independently of the gas bell, the

hopper being stationary while the encircling gas bell rises and falls with the varying volume of the gas. In the bottom of the carbid hopper 1s a casting 9 having discharge openings 10 upon opposite sides of the center thereof and beneath these openings chambers 11 are formed having discharge ports 12 beneath the discharge openings 10. Through these openings and ports the carbid is discharged upon a hopper- Specification of Letters Patent.

Patented Mar. 3(1 1915..

serial No. 811,280.

shaped plate 13 which directs the carbid lnto the water tank beneath.

The carbid hopper is provided with a cover 14 between which and the casting 9 a sleeve 15 is arranged, and within said sleeve a stem 16 is mounted. The lower end of this stem depends above the discharge openings 10 and 12 of the hopper and is provided with valve blades 17 and 18 adapted to close the openings 10 and 12 and prevent the discharge of the carbid therethrough. These blades are arranged in staggered relation to one another upon the stem 16 so that as the stemis revolved the upper andlower dischargeopeningsin the hopper will be alternately closed and opened. That is, upon the initial movement of the valve the lower blade, being. closed, will move to an open position, 1111 covering both of the openings 12, while the upper blade, being open, will move to a closed position and thereby check the flow bf carbid into the chamber 11 while the lower blade is open. The return movement ofthe valve will move v p closed position and the upper blade to an open position and allow the chamber 11. to. fill with carbid, ready to discharge into the water beneath as soon as the valve is again operated. In this way only a predetermined quantity of carbid can be discharged at any one time into the water tank and hence over-generation of gas cannot result from the operation of the machine.

for any reason the mechanism should become inoperative during the discharge of the carbid from the chamber, the openings to the main supply of the hopper would be closed and no further discharge of the carbid would take place until the operating mechanism was put inworking order again. Any suitable means may be employed for operating the valve, but I prefer to provide a forked arm 19 thereon that is actuated by a pin 20 eccentrically mounted on a lever 21 and projecting between the arms of the fork 19. The lever 21 is pivoted at 22 and has an arm 23 projecting into the path of the 'gas bell to be actuated thereby to lift the weight 24 and rock the arm 19 to oscillate the stem 16 and the valve. This manner of mounting the operating lever with the valve stem T have found to be very reliable and eiiicient. It is positive in operation and there is no danger of sticking or binding, due to corrision of the connections. This operation of the valve will take place as the gas bell descends and the supply of gas is low therein, and upon the upward movement of the gas bell under the pressure of the gas the weight 24; will return the lever 21 and the valve stem to their normal position.

At one side of the hopper I prefer to provide an auxiliary hopper 25 which I do not show in detail, as it has no part in my present invention.

I claim as my invention:

1.] The combination, with a hopper having discharge openings therein upon opposite sides of its vertical axis and also having a chamber beneath said openings provided with discharge ports also upon opposite sides of the vertical axis of said hopper, a valve having blades arranged to alternately close and open said upper and lower discharge ing and closing said upper and lower openings alternately, and means for oscillating said stem to operate said blades.

3. The combination, with a hopper having a pair of upper discharge openings and a pair of lower discharge openings and a chamber formed between said openings, of a valve stem arranged between the openings of said pairs, blades projecting laterally from said valve stem and closing and exposing said upper and lower openings alternately when said stem is oscillated, and means for operating said stem.

4. The combination, with a hopper having a pair of upper discharge openings and a pair of lower discharge openings, of a valve stem, and blades mounted in pairs upon said stem and arranged toclose and open said upper and lower openings alternately when said stem is oscillated.

5. The combination, with a hopper having a pair'of upper discharge openings and a pair of lower discharge openings, of a valve stem arranged between the openings of said pairs, blades projecting laterally from said valve stem and closing and exposing said upper and lower openings alternately when said stem is oscillated, and a weighted lever operatively connected with said stem and normally holding said blades in their closing position, and means for actuating said lever to move said blades to their open position when the volume of gas falls below a predetermined point. a

In witness whereof, I have hereunto set my hand this 27th day of December, 1912.

CLAUD J. CLEFTON.

Witnesses:

A. W. SAWYER, H, E. JoHNsoN. 

